The Vulcanian Scientific Legion of Honor, or Vulcan Scientific Legion of Honor, was a prestigious medal awarded on Vulcan in recognition of an individual's scientific accomplishments.
Michael Burnham had been awarded the medal prior to 2256. (DIS: "The Butcher's Knife Cares Not for the Lamb's Cry")
Commander Spock had been awarded the medal sometime in his career prior to 2267. (TOS: "Court Martial")
In the personnel file for Burnham, this award was identified as the "Vulcan Scientific Legion of Honor".